6847189 has 4 divisors (see below), whose sum is σ = 6959500. Its totient is φ = 6734880.

The previous prime is 6847157. The next prime is 6847213. The reversal of 6847189 is 9817486.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3122289 + 3724900 = 1767^2 + 1930^2 .

It is a cyclic number.

It is not a de Polignac number, because 6847189 - 2⁵ = 6847157 is a prime.

It is a Duffinian number.

6847189 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6842189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56064 + ... + 56185.

It is an arithmetic number, because the mean of its divisors is an integer number (1739875).

Almost surely, 2^6847189 is an apocalyptic number.

It is an amenable number.

6847189 is a deficient number, since it is larger than the sum of its proper divisors (112311).

6847189 is a wasteful number, since it uses less digits than its factorization.

6847189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112310.

The product of its digits is 96768, while the sum is 43.

The square root of 6847189 is about 2616.7133966103. The cubic root of 6847189 is about 189.8908791700.

The spelling of 6847189 in words is "six million, eight hundred forty-seven thousand, one hundred eighty-nine".